63results about How to "High boiling point" patented technology

The invention provides an anti-corrosion Teflon coating as well as a preparation method and application thereof, and belongs to the technical field of coatings. The preparation method comprises the following steps: irradiating polytetrafluoroethylene micro-powder, performing graft modification on the irradiated polytetrafluoroethylene micro-powder and glycidyl methacrylate, reacting with phosphorus oxychloride and polydopamine modified graphene, adding into a Teflon primer, and uniformly stirring and mixing to obtain the anti-corrosion Teflon coating. The anti-corrosion Teflon coating prepared by the invention has good high-temperature resistance, corrosion resistance, rust resistance, mechanical properties, wear resistance, scratch resistance, medium resistance and the like, can effectively resist high-wear-resistance environments such as sliding friction, impact friction and cavitation friction and high-corrosion environments such as acid media and alkaline media, and has a wide application prospect.

The invention discloses a supercooled liquid nitrogen cooling circulation system which comprises a container containing a refrigerant and a circulation pipeline partially located in the container, at least part of the circulation pipeline is located below the liquid level where the refrigerant is located in the container, and the circulation pipeline is connected with load equipment and provides cooling capacity for the load equipment. Purging and vacuumizing pipelines are connected to the circulating pipelines located at the upstream and downstream of the load equipment, and adjusting pieces capable of adjusting the cold mass flow in the circulating pipelines are arranged on the circulating pipelines. According to the invention, through the arrangement of the purging and vacuumizing pipelines, the circulating pipeline between the two purging and vacuumizing pipelines and the replaced load equipment can be purged and vacuumized through the two purging and vacuumizing pipelines when the load equipment is replaced; and refrigerant consumption caused by replacement of load equipment after temperature returning of the whole circulating pipeline is avoided.

The invention belongs to the technical field of gas separation, and relates to an anhydrous solvent for carbon dioxide capture and a preparation method and application thereof. The anhydrous solvent provided by the invention is composed of effective components and auxiliaries, wherein the effective components are diethanol amine, N-methyldiethanol amine, ethanol amine, piperazine, diglycolamine, N-methylmonoethanol amine and ethylene glycol; the auxiliaries are a corrosion inhibitor, an antioxidant and a defoaming agent. Compared with an alcohol amine aqueous solution, the anhydrous solvent provided by the invention has stronger absorption capacity when being used for absorbing carbon dioxide, and shows better stability and higher absorption speed.

The invention belongs to the technical field of synthesis of organic chemical products through olefin carbonylation, and particularly relates to a catalyst system for ethylene carbonylation reaction. The catalyst system includes a palladium salt, one or more phosphine ligands, and one or more phosphorus (P)-containing compounds as stabilizers; the molar ratio of the palladium to the phosphine ligand to the stabilizer is 1: (1-6): (60-1000). According to the method, the phosphorus (P)-containing compound serving as the stabilizer is introduced to replace the sulfonic acid, direct use and supplement of the sulfonic acid are avoided, the catalytic activity and stability of a catalyst system can be improved, the equipment and process requirements can be reduced, and the method has a good application prospect.

The invention relates to the technical field of fluorine-containing chemicals, and provides a perfluoroketone compound as well as a preparation method and application thereof, the structural formula of the perfluoroketone compound is as shown in # imgabs0 #, and Rf1, Rf2 and Rf3 are the same or different and are independently selected from C1-C8 straight-chain or branched-chain perfluoroalkyl groups. The perfluoroketone has the beneficial effects that the carbon number of the perfluoroketone is controllable, and perfluoroketones with different boiling points can be obtained according to requirements; according to the method for preparing the perfluoroketone compound, the adopted raw materials are low in cost, good in safety and stability, non-toxic, harmless and easy to store, the reaction process is controllable, the selectivity is high, products are easy to separate, aftertreatment is simple, and the method is suitable for actual technological production; the perfluoroketone provided by the invention has a relatively low dielectric constant and relatively good heat transfer performance, is non-combustible, and has a very good application prospect in the aspects of semiconductors, refrigeration systems and fire fighting.

The invention belongs to the technical field of OCA optical cement, and discloses optical cement and a preparation method thereof. The optical adhesive is prepared from the following raw materials in parts by weight: 75 to 100 parts of acrylate prepolymer, 15 to 30 parts of diluent, 5 to 8 parts of acrylic acid, 10 to 20 parts of isobornyl methacrylate, 10 to 20 parts of silica sol, 2 to 3 parts of initiator, 0.5 to 3 parts of cross-linking agent and 0.5 to 3 parts of antioxidant. The acrylic resin is formed by polymerizing a hard monomer, a soft monomer and a functional monomer under the action of a photoinitiator. The optical adhesive prepared by the invention has good viscidity, is not easy to remain on a laminated display material, has high elongation and relatively good stripping property, meanwhile, the light transmittance and stability of the optical adhesive are improved by polymerization of the raw materials, and the optical adhesive is high in transparency, low in haze, free of shrinkage during curing and good in weather resistance.

The invention provides photocuring 3D printing silicone rubber ink and a preparation method and a printing method thereof. The photocuring 3D printing silicone rubber ink comprises the following components in parts by mass: 100 parts of vinyl polysiloxane; 4 to 29 parts of sulfydryl grafted polysiloxane; 10 to 50 parts of surface modified fumed silica; 0.1 to 0.5 part of a photoinitiator; 1-5 parts of a light absorber; and 10-220 parts of a diluent. According to the photocuring 3D printing silicone rubber ink, firstly, sulfydryl grafted polysiloxane serves as a cross-linking agent and is cross-linked with vinyl terminated polysiloxane to form a silicone rubber elastomer, secondly, the mechanical property of the silicone rubber elastomer is enhanced through surface modified fumed silica, and then the viscosity of the silicone rubber elastomer is adjusted through the diluent; and finally, the curing depth of the silicone rubber elastomer is adjusted through the light absorber, so that the ink suitable for photocuring 3D printing is obtained, and the contradiction that high mechanical property and low viscosity of traditional photocuring 3D printing silicone rubber cannot be achieved at the same time is overcome.

The invention discloses a method for extracting and recycling white oil in waste lithium battery diaphragms, and relates to the technical field of lithium battery recycling. The method comprises the following steps: S1, adding crushed waste films and a white oil extraction agent into a closed system for extraction, and discharging an extraction mixed solution after the extraction is completed; s2, filtering the extraction mixed liquid discharged in the step S1, performing low-temperature evaporation on the liquid, condensing the evaporated extraction agent into a liquid state, recycling the liquid state to the step S1, and obtaining the white oil which is completely evaporated and is left at the bottom of the evaporator. According to the method, the high-boiling-point white oil extraction agent is adopted and is not prone to volatilization at the normal temperature, the recovery rate is higher, the extraction white oil and the extraction solvent are separated, recovered and extracted at the specific evaporation temperature and under the negative pressure through low-temperature evaporation, the extraction solvent is recovered through low-temperature evaporation, cyclic utilization of the extraction liquid can be achieved, and loss of the extraction agent is reduced.

The invention provides a wear-resistant antirust Teflon coating and a preparation method thereof, and belongs to the technical field of coatings. The preparation method comprises the following steps: irradiating polytetrafluoroethylene micro powder, performing graft modification on the irradiated polytetrafluoroethylene micro powder and glycidyl methacrylate, reacting the modified polytetrafluoroethylene micro powder with silicon oxide coated modified Zn / Fe deposited porous alumina nanospheres modified by a silane coupling agent and hydrolyzed, adding the reaction product into a Teflon primer, and uniformly stirring and mixing to obtain the wear-resistant antirust Teflon coating. The coating prepared by the invention is compact in coating after being cured into a film, has good lubricating conditions and mechanical action resistance, excellent wear resistance, scratch resistance, medium resistance, high-temperature resistance and the like, can effectively resist high-wear-resistance environments such as sliding friction, impact friction and cavitation friction, can make up for the wear defect caused by friction of two contact surfaces, and also has the advantages of high wear resistance, high wear resistance and the like. And two opposite moving surfaces have good lubricating and antifriction effects, so that the problems of friction and abrasion are solved, and a substrate is protected for a long time.

The present application discloses a low-precipitation environmentally friendly WPC wood-plastic floor lubricating material and a preparation method thereof. On the one hand, the present application provides a low-precipitation environmentally friendly WPC wood-plastic floor lubricating material, and the mass proportion of each raw material component of the lubricant includes: 20 to 28 parts of methyl methacrylate grafted polypropylene wax, 32 to 40 parts of MBS resin powder, 8 to 16 parts of chlorinated paraffin, 16 to 22 parts of TPP tritolyl phosphate, 4 to 10 parts of zinc borate, and 2 to 8 parts of silicone powder. On the other hand, the present application provides a preparation method for the above-mentioned low-precipitation environmentally friendly WPC wood-plastic floor lubricating material. The present application effectively improves the compatibility between wood components and polyvinyl chloride without any precipitation, and can comprehensively improve the various properties and flame retardant properties of PVC-based wood-plastic composite panels.

The invention discloses a sodium-ion battery electrolyte and a sodium-ion battery prepared from the sodium-ion battery electrolyte. The electrolyte has the characteristics of high boiling point, wide liquid state range temperature and good stability. A sodium salt with a trifluoro substituent group is matched with a conventional sodium salt according to a proper proportion, so that the problems of low ion mobility and difficulty in desolvation of the sodium ion battery caused by only using propylene carbonate as a solvent are solved. The sodium ion battery prepared from the electrolyte has excellent high-temperature and low-temperature cycle performance and high-temperature storage performance, and the safety of the battery is greatly improved.

The present invention relates to a polyethylene sheet material, the raw material of which is mainly polyethylene particles, the gram weight of the polyethylene sheet material is more than 40g / square meter, and the BET specific area is 9m 2 / gm or more; the mass fraction of polyethylene particles in the polyethylene sheet material is more than 80%; the raw materials also include polyethylene homologues, polypropylene, polyolefins, polybutene-1, poly(4-methyl-1-pentene), polyvinylidene fluoride, or more. The present application has good performance and a wide range of applications.

The present invention provides an electrolyte for a lithium iron phosphate battery, a preparation method and an application thereof. The electrolyte comprises, by mass percentage, 8-15% of a lithium salt, 81-90% of a solvent and 0.5-10% of an additive; and the additive comprises a combination of a vinyl ester compound and ethylene glycol; by selecting the combination of the vinyl ester compound and ethylene glycol as the additive, the obtained electrolyte can have a low viscosity, a low melting point and a high boiling point, thereby effectively improving the compatibility between the electrode interface and the electrolyte, improving the stability of the SEI film, and thus improving the electrochemical performance of the lithium iron phosphate battery.

The invention discloses a method for recovering dimethyl ether from dimethyl ether purge gas, and belongs to the technical field of dimethyl ether recovery, the method for recovering dimethyl ether from dimethyl ether purge gas comprises the following steps: cooling the dimethyl ether purge gas to 8-10 DEG C through heat exchange of a heat exchanger, and then discharging to obtain low-temperature purge gas, the low-temperature purge gas enters the bottom of the inner side of an absorption tower filled with composite filler and is absorbed by absorption liquid which flows from top to bottom and has the temperature of 10-15 DEG C, and enriched liquid is formed at the bottom of the absorption tower; according to the method, the composition and the adsorption temperature of the adsorption liquid are optimized, and the composite filler is modified, so that the recovery purity of the dimethyl ether is effectively improved, and the recovery rate of the dimethyl ether in the purge gas is also improved.

The invention discloses an extraction device and an extraction method of star anise essential oil, and belongs to the technical field of vegetable oil extraction. The extraction device provided by the invention comprises a round-bottom flask, an air condensation pipe, a distillation head, a condensation pipe, a receiving pipe and a receiving bottle, the opening of the round-bottom flask is connected with the bottom of the air condensation pipe; the top of the air condensation pipe is connected with a bottom end pipe of the distillation head; a side end pipe of the distillation head is connected with the top of the condensation pipe; the bottom of the condensation pipe is connected with the top of the receiving pipe; inserting the tail part of the receiving tube into a receiving bottle; and a polymeric membrane is loaded at the top of the air condensation pipe. According to the extraction device and the extraction method of the star anise essential oil, the problems of long time consumption, large steam consumption and high energy consumption in a traditional extraction process are solved, and meanwhile, the extraction rate of the star anise oil and the extraction rate of the effective component anethole are greatly improved.

The present application relates to the field of chemical and chemical technology, and in particular to a method for synthesizing sodium azide. It can solve the problems of long reaction time, low production efficiency, many by-products, large pollution emissions, and high safety hazards in the sodium azide preparation process in the related technology. A method for synthesizing sodium azide, comprising: using aromatic alcohol as a raw material to prepare nitrite ester of aromatic alcohol; under alkaline conditions, allowing nitrite ester to undergo a reduction reaction with hydrazine hydrate to prepare sodium azide; wherein the aromatic alcohol comprises: one or more compounds represented by the structural formula: #imgabs0#, wherein Ar is selected from the following substituted or unsubstituted C6~C 20 Aryl and substituted or unsubstituted C3~C 10 Any one of the heteroaryl groups, R is selected from #imgabs1#n is an integer of 1 to 3; wherein, in #imgabs2#, R1 and R2 are the same or different and are independently selected from any one of H and C1 to C3 alkyl groups; when Ar is selected from substituted C6 to C 20 Aryl or substituted C3~C 10 In the case of heteroaryl, the substituted substituent is selected from C1-C9 alkyl, and * indicates the attachment site.

The invention discloses an organic-inorganic hybrid antimony-based nonlinear optical crystal material as well as a preparation method and application thereof, and belongs to the technical field of optical materials. DMSO has high polarity, high boiling point, good thermal stability and good solubility, the DMSO becomes an appropriate reaction solvent in a Sb < 3 + > system due to the characteristics, meanwhile, oxygen atoms or sulfur atoms on the DMSO have nucleophilicity, so that the DMSO has alkalinity and coordination and can form coordinate bonds with metal cations, and therefore, the DMSO can also be used as a reactant, and the Sb < 3 + > system can be used for preparing the Sb < 3 + > system. The triangular pyramid structure can enrich the structure of the Sb-based compound. According to the invention, dimethyl sulfoxide (DMSO) is taken as a solvent, and a solvent evaporation method is adopted to grow the crystal, so that the problem of hydrolysis of Sb < 3 + > is effectively avoided, the research thought and method of Sb < 3 + > are broadened, and structural distortion is increased due to introduction of DMSO, so that the optical performance of the compound is improved.

The application belongs to the technical field of power generation, and particularly relates to a power supply device for automobile range extension, and more particularly to a direct-current power generation system and a working method thereof. The direct-current power generation system acquires the power of a power generation part in real time through a control module. When the power changes, the control module controls a pressurizing part to pressurize a power part cooling loop, and controls a connecting part to connect the power part cooling loop and the power generation part cooling loop, so that the high-pressure gas in the power part cooling loop enters the power generation part cooling loop, the gas pressure in the power generation part cooling loop is increased, the boiling point of the cooling liquid in the power generation part cooling loop is increased, and the cooling requirements of the power generation part and the power part are simultaneously met. When the power of the power generation part changes, the gas pressure in the power generation part cooling pipeline is increased, the boiling point of the cooling liquid therein is increased, and the cavitation effect caused by the local temperature rise and boiling of the cooling liquid due to the local eddy current caused by the power change is avoided.

The invention relates to the field of medical waste treatment equipment, and discloses a medical hazardous waste treatment device based on friction rotary cut, the medical hazardous waste treatment device comprises a sterilization cylinder, the outer wall of the sterilization cylinder is fixedly connected with a fixing frame, a rotary cutter is arranged at the bottom in the sterilization cylinder, and a driving device is arranged below the sterilization cylinder; the outer wall of the driving device is fixedly connected with the fixing frame through a support, the driving device drives the rotary cutter to rotate, the medical waste in the sterilization barrel is rotationally cut and stirred, the rotating speed difference is generated between the rotary cutter and the medical waste, the top of the sterilization barrel is open, and a barrel cover is arranged at the opening. Through the arrangement of the driving device, the rotating speed difference is continuously generated between the rotating cutter and the medical waste, so that the friction force between the rotating cutter and the medical waste is improved, meanwhile, the efficiency of disturbing the medical waste by the rotating cutter is also improved, and the distribution uniformity of the medical waste in the sterilization cylinder is improved; therefore, the treatment efficiency of the medical wastes is greatly improved.

The invention belongs to the technical field of locomotive cooling. The invention discloses a method for improving cavitation erosion of a cylinder sleeve flange of a locomotive diesel engine to solve the problem of cavitation erosion of the cylinder sleeve flange of the locomotive diesel engine after long-term operation under a high-temperature working condition. The method includes increasing a high temperature water system pre-pump pressure in the diesel engine cooling system to a predetermined range to raise a boiling point of the high temperature water to a predetermined level. The boiling point of high-temperature water is increased by increasing the pre-pumping pressure in the water system to the preset range, boiling of the high-temperature water at the cylinder sleeve flange is restrained, cavitation erosion of bubbles generated by boiling to the cylinder sleeve flange is reduced, and powerful guarantee is provided for locomotive operation safety and reliability of diesel engine key components.

The invention discloses a paraffin remover and a preparation method thereof, and belongs to the technical field of oilfield exploitation. The paraffin remover comprises the following components: heavy aromatics, limonene, polymethacrylate, fatty alcohol-polyoxyethylene ether, modified methylcellulose and modified EVA (Ethylene Vinyl Acetate), the preparation method comprises the following steps: adding limonene, polymethacrylate, fatty alcohol-polyoxyethylene ether, modified methyl cellulose and modified EVA into the heavy aromatic hydrocarbon according to the formula ratio, heating the mixture to 60-70 DEG C, and stirring for 3-5 hours to obtain the environment-friendly paint. All the components in the paraffin remover have a synergistic effect, a wax layer on the metal surface can be effectively stripped, the dissolution rate of wax can be increased, the wax can be stably dispersed in a system after being dissolved and cannot be solidified and gathered again, and regeneration of wax blocks can be effectively avoided.

The present application belongs to the technical field of lithium primary battery, and particularly relates to a preparation method of lithium primary battery electrolyte, which comprises the following steps: dissolving lithium nitrate in acetone and fully stirring to make the lithium nitrate fully dissolved until the solution is clear and transparent; adjusting the lithium salt concentration in the solution to 1.5-2 mol / L; adding fluoroethylene carbonate and fully stirring until the solution is clear and transparent; in the solution, the volume ratio of fluoroethylene carbonate to acetone is 1:1-1:3; finally, adding propylene carbonate and fully stirring until the solution is clear and transparent; in the solution, the volume ratio of propylene carbonate to acetone is 1:2-1:4. The present application ensures that the electrolyte has high conductivity and can bear high efficient transportation of lithium ions, effectively increasing the discharge specific capacity and specific energy of the battery. In addition, the present application further provides a lithium primary battery electrolyte.

A temperature control device suitable for supercritical CO2 waterless dyeing equipment comprises a heat conduction oil device and an ethylene glycol refrigerating fluid device, the heat conduction oil device comprises a heat conduction oil inlet pipeline, a heat conduction oil pipeline and a heat conduction oil outlet pipeline, the heat conduction oil pipeline is arranged in a supercritical CO2 dyeing system, and the ethylene glycol refrigerating fluid device is arranged in the heat conduction oil pipeline. The heat-conducting oil inlet pipeline and the heat-conducting oil outlet pipeline are correspondingly connected to the front end and the rear end of the heat-conducting oil pipeline respectively; the ethylene glycol refrigerating fluid device comprises an ethylene glycol refrigerating fluid supply pipeline and an ethylene glycol refrigerating fluid backflow pipeline, ethylene glycol refrigerating fluid in the ethylene glycol refrigerating fluid supply pipeline exchanges heat with heat conduction oil in the heat conduction oil inlet pipeline, and the ethylene glycol refrigerating fluid after heat exchange is output through the ethylene glycol refrigerating fluid backflow pipeline. According to the supercritical CO2 dyeing system, the ethylene glycol refrigerating fluid device is additionally arranged to carry out heat exchange on the heat conduction oil inlet pipeline at the front end of the supercritical CO2 dyeing system, so that the temperature of heat conduction oil is controlled, and the situation that after dyeing is completed, the supercritical CO2 dyeing system is still continuously heated, and consequently the color of a product changes is avoided.

The invention relates to the technical field of organic silicon cooling liquid, and discloses poly (trialkyl silicon) substituted siloxane, a preparation method thereof and application of the poly (trialkyl silicon) substituted siloxane in immersion cooling liquid, the preparation method comprises the following steps: trialkyl silicon acetate and alkoxy silane are subjected to transesterification under the action of a catalyst, and the poly (trialkyl silicon) substituted siloxane is obtained. The poly (trialkyl silicon) substituted siloxane is obtained. The prepared poly (trialkylsilane) substituted siloxane is low in viscosity, high in boiling point, high in flash point, low in freezing point and good in stability, does not need to be compounded with a fluorinated liquid, can be independently used as an immersion cooling liquid and is applied to immersed heat dissipation of a chipset, and the preparation method is simple, efficient and suitable for large-scale production.

The invention provides a method for preparing lithium bisfluorosulfonyl imide, which uses tritylamine as a nitrogen source, wherein a large trityl electron-donating group increases the reactivity of the amine, and an organic solvent neutralizes a fluorosulfonyl compound and reacts in a strongly alkaline environment, and then undergoes extraction, dehydration, and decolorization treatment, and concentrated crystallization to obtain a trityl bisfluorosulfonamide intermediate with a high yield. The intermediate is dissolved in an organic solvent, and catalytic hydrogenation is performed to obtain bisfluorosulfonyl imide acid. The intermediate is reacted with a lithium source to obtain lithium bisfluorosulfonyl imide. The lithium bisfluorosulfonyl imide is obtained by recrystallization and purification to obtain battery-grade lithium bisfluorosulfonyl imide. The invention uses tritylamine as a nitrogen source to react and prepare bisfluorosulfonyl imide, and has high reactivity, a mild route, simple separation and purification, and is conducive to industrial production.

The invention provides a high-temperature-resistant electrolyte for a lithium-manganese battery and a preparation method and application of the high-temperature-resistant electrolyte, and belongs to the technical field of battery electrolytes.The high-temperature-resistant electrolyte comprises lithium salt, an organic solvent, a high-temperature-resistant additive and a flame retardant, and the high-temperature-resistant additive is polydimethylsiloxane, hexamethyldisilazane, fluoroethylene carbonate and 1, 2-propylene glycol; and one or more of 1, 3-propane sultone. Aiming at the defects of the existing electrolyte, the invention develops the electrolyte with high thermal stability and strong compatibility with the lithium elementary substance, and the electrolyte can still keep stable performance under the condition of long-time storage at 80 DEG C, and has good performance on parameters such as differential pressure, internal resistance after storage, electrolyte loss rate after storage and the like. The decomposition of the electrolyte under a high-temperature condition is reduced, the electrolyte is better matched with the system characteristics and the use environment of the lithium-manganese battery, and the application range and field of the lithium-manganese battery are widened.

The invention provides a free radical polymerization inhibitor, a preparation method and application thereof, and a composition containing hydroxyethyl methylacrylate. The radical polymerization inhibitor has a boiling point of 350 DEG C or more. When the free radical polymerization inhibitor is applied to the extraction, rectification and separation process of hydroxyethyl methylacrylate, the content of hydroxyethyl methylacrylate products brought to the tower top is extremely low, and adverse effects on the color number and downstream application of the hydroxyethyl methylacrylate products are avoided. The free radical polymerization inhibitor is selected from one or more of the following structures: # imgabs0 #

A wide temperature range deep eutectic electrolyte and its preparation method and application belong to the field of chemical power source technology. The scheme is as follows: the wide temperature range deep eutectic electrolyte is composed of ethylene carbonate, succinonitrile and alkali metal ion salt, wherein the mass ratio of succinonitrile to ethylene carbonate is 4:6 to 6:4, and the concentration of alkali metal ion salt is 2.5 to 4 mol / L. The preparation method is as follows: Ethylene carbonate and succinonitrile are melted separately, mixed evenly, and cooled to obtain a deep eutectic solvent; alkali metal ion salt is added to the deep eutectic solvent and stirred until completely dissolved to obtain a wide temperature range deep eutectic electrolyte. The wide temperature range deep eutectic electrolyte is used in alkali metal ion batteries. The present invention prepares a deep eutectic solvent with low viscosity, low freezing point, high boiling point and high electrochemical stability, and then composites a high-concentration alkali metal ion salt to obtain a deep eutectic electrolyte with a wide liquid range to meet the working requirements of wide temperature range alkali metal ion batteries.

The invention provides a quantum dot stability rapid test device and method.The test device comprises a sealed test box, a sample support, a light source, a gas supply assembly, a test environment monitoring assembly, a sample detection assembly and a control and processing system, a water tank is arranged in the test box, a heating plate is arranged at the bottom of the water tank, and the sample support is arranged in the test box; light emitted by the light source can irradiate a to-be-tested sample, the gas supply assembly is communicated with the test box through a gas supply pipeline, the test environment monitoring assembly comprises a temperature sensor, a humidity sensor and a pressure sensor, the sample detection assembly comprises a photoelectric detector, and the control and processing system supplies gas to family members according to the temperature, humidity and pressure in the box body. When the temperature, the humidity and the pressure in the box body reach set values, the light source and the photoelectric detector are controlled to be started, and optical parameters of the to-be-detected sample are obtained. The rapid test device and method can improve the severity of aging test conditions in multiple aspects, accelerate the aging test, and greatly shorten the aging test period.

The invention provides a cooling structure and a machine tool cooling system.The cooling structure comprises a heat exchanger, the heat exchanger is provided with a first heat exchange pipeline and a second heat exchange channel which are relatively independent, and the two ends of the first heat exchange channel are used for being connected with a to-be-cooled component so that a cooling medium can be input into the to-be-cooled component to cool the to-be-cooled component; the cooling medium for cooling the to-be-cooled part is subjected to heat exchange through the second heat exchange channel; the first heat exchange channel comprises a first flow channel and a second flow channel which are relatively independent so that two different cooling media can flow in the first flow channel and the second flow channel correspondingly. The inlet end and the outlet end of the cooling assembly are used for communicating with the two ports of the second heat exchange channel, so that a refrigerant is input into the second heat exchange channel, and the cooling medium located in the first heat exchange channel is cooled; the problem that in the prior art, when multiple cooling media are used for cooling a machine tool, multiple coolers need to be arranged is solved.